Defrost heater using strip type surface heat emission element and fabricating method thereof and defrost apparatus using the same
US8405009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2009 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Jan 11, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a defrost heater using a surface heat emission element of a metal thin film having a fast temperature response performance and a low thermal density, to thereby use an environment-friendly refrigerant, and that performs quick temperature rising and cooling during performing a defrost cycle, to thereby quickly restart a refrigeration cycle and thus greatly reduce time required for the defrost cycle, and a fabricating method thereof, and a defrost apparatus using the same. The defrost heater includes: a strip type surface heat emission element made of a strip type metal thin plate; an insulation layer that coats the outer circumference of the strip type surface heat emission element; and a heat transfer board on one side surface of which the surface heat emission element on the outer circumferential surface of which the insulation layer has been coated is installed, and that contacts evaporator fins so that heat generated from the surface heat emission element is transferred to an evaporator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.